干旱胁迫下外源山梨醇对平邑甜茶耐旱性影响  

The Effect of Exogenous Sorbitol on Drought Tolerance of Malus Hupehensis under Drought Stress

作　　者：孟艳玲[1,2] 刘林[3] 白涛[1] 韩振海[1] 

机构地区：[1]中国农业大学园艺植物研究所,北京100094 [2]威海市农业科学院,山东威海264200 [3]西藏农牧学院,西藏林芝860000

出　　处：《北方园艺》2009年第5期69-70,共2页Northern Horticulture

基　　金：北京市自然科学基金资助项目(6041002);农业部公益性行业计划资助项目(nyhyzx07-024)

摘　　要：测定了干旱胁迫下外源喷施50 mg/L和100 mg/L山梨醇后平邑甜茶叶片光合特性、叶片水势和新梢生长速率。结果表明:叶面喷施山梨醇可以改善受胁迫植株的光合状况,减缓叶片水势下降,减轻新梢生长受抑,提高植株耐旱性。Photosynthesis, water potential of leaves, shoot growth of M. hupehensis pamp Reid treated by 50 mg/L and 100 mg/L exogenous sorbtitol respectively under drought stress, the exogenously foliar-applied sorbitol showed to a certain extent to improve photosynthesis, alleviated the drop of water potential, promoted shoot growth.

关 键 词：干旱胁迫 外源山梨醇 耐旱性 

分 类 号：S66[农业科学—果树学] S482.899[农业科学—园艺学]